Question

1. In order to determine the most effective of six forms of supplementary instruction (none, Web materials, personal trainer, printed handouts, video tapes, personal trainer and Web) 60 students were randomly divided in to six groups and each group used one of the six forms of supplementary instruction. Scores achieved by the students on an end of term test were recorded and the results analyzed. The ANOVA software produced the following output.

SOURCE                     DF                SS              MS                 F

Model                                              1561                                        

Error                                                                                

Total                                                  3031

State the hypotheses being tested in this ANOVA, fill in the table, and draw conclusions at the .05 level. Be sure to include a statement to be tested, describe the random variables involved and assumptions about them, level of significance, test statistic, and the critical region.

Here are the results of a Duncan multiple range test:

Supp inst	N	Subset for alpha = .05
		1	2	3
4	10	43
3	10	44
2	10	48	48
1	10		52
5	10			55
6	10			56

What does this tell us about the various forms of instruction?

Answer 1